Article Archive June and July 2012

Dandong Foundry is a professional Iron and Steel
Casting Manufacturer in China. We share some
standards
and experiences to help buyers to better understand
some technical issues with iron and steel castings.

Advantages of Steel Casting
- on Jul. 24, 2012
Introducing the advantages of steel
casting by Dandong Foundry in China,
including the comparison with forged
steel parts, welded parts and iron
castings.

ASTM A48 Class 25 Cast Iron
- on Jul. 19, 2012
ASTM A48 class 25 is a material
grade of gray cast iron in USA,
which is higher than class 20, but
lower than class 30. Its UNS number
is F11701. There are four specific
grades as ASTM A40 class 25A, 25B,
25C and 25S.

Machining surface finish chart,
comparator, method, degree, Ra, Rz,
RMS - on Jul. 18,
2012
As for machining to iron and steel
castings, the surface finish smooth
degree is also an important
requirement. The following is the
conversion chart for Ra (um), Ra
(micro inch), Rz (um), RMS and
finish degree in China and USA,
including the related finish
methods.

Large Cast Iron Castings
- on Jul. 17, 2012
Large cast iron castings mean the
casting parts with unit weight
higher than 500 kgs or larger than 1
meter. Because large iron castings
have more weight, so will require
sand molds to have higher strength.
Therefore, most of iron foundries
will produce them by resin sand
casting process.

The Metal Foundry -
on Jul. 05, 2012
Dandong Foundry is the metal
foundry, who has produced metal
castings for over 50 years in China.
The main products include gray iron,
ductile iron and carbon steel
castings with unit weight from
several kgs to 2 tons.

Foundry
NZ - on Jul. 04,
2012
Dandong Foundry has produced many
iron and steel castings to New
Zealand market. Some are grey iron
and ductile iron castings, some are
large carbon steel and mild steel
casting parts.

Chinese Cast Iron -
on Jul. 03, 2012
Chinese Dandong Foundry has produced
over 2000 different types of cast
iron parts in the past 50 days. The
followings are some iron castings
and their production processes.

Casting Production - Processes,
Costs and Companies
- on Jun. 28, 2012
Dandong Foundry has been engaged in
casting production for over 50
years, mainly manufacturing grey
iron, ductile iron and cast steel
products. Herein, we will briefly
introduce the metal casting
production processes and related
costs.

Custom Cast Iron -
on Jun. 26, 2012
Making a brief introduction to the
process of producing custom cast
iron parts, the types of custom cast
iron castings, and OEM manufacturers
in China.

Cast Iron GGG40 - Ductile Iron
- on Jun. 13, 2012
Cast iron GGG40 is a low grade of
ductile iron. Our foundry has
produced this material for many
years, and herein, we introduce its
mechanical and chemical properties
and some iron castings made by this
material grade.

Cast Iron Price - on
Jun. 07, 2012
Many clients asked us the cast iron
price per kg or per ton, but it is
very difficult to offer an accurate
price before considering many
factors and requirements. Herein,
let us make a brief introduction to
the cast iron price composition,
cost calculation and price
adjustment.